Ugh!! Medical staff sometimes have no idea how much we agonise over their advice!! I wish they were all singing from the same hymn sheet, and then at least you can be sure you're putting your effort into the important things Call again when she's not on shift!!

If you still want to keep trying, why don't you try both for a bit? First take your temp orally, so at least you've got a temp, and then try vaginally, and see if you can't get the hang of it? Just record them separatey - they're not interchangeable. (You might want 2 different thermometers for that )

You could try practising doing it at some other time of day, too - so you're not anxious about getting a correct bbt reading, just learning the technique.

Remember that 'muscle memory' makes these things easier, so if you get it right, do it again, exactly the same way, immediately, and repeat a few times. And try different positions, too - either on your back with knees bent up, both hand reaching from the front, or on your side with top knee lifted, both hands reaching from the front, or on your side with top knee lifted a bit, one hand reaching from the front and the other reaching around from behind (with this one you might try the thermometer in either hand.

Anyway, you're most welcome - I hope you come to terms with it one way or another! Let us know how you're going in a few days.